marimo - reactive notebook for python

https://github.com/marimo-team/marimo

marimo is a reactive notebook for Python. It allows you to rapidly experiment with data and models, code with confidence in your notebook's correctness, and productionize notebooks as pipelines or interactive web apps.

Highlights.

• reactive: run a cell, and marimo automatically updates all affected cells and outputs
• interactive: bind sliders, tables, plots, and more to Python — no callbacks required
• reproducible: no hidden state, deterministic execution order
• executable: execute as a Python script
• shareable: deploy as an app
• git-friendly: stored as .py files

It's observable, but for python